原发性甲状旁腺功能亢进症（ＰＨＰＴ）是一种临床少见的内分泌疾病，因其特殊的病理生理变化，常使人致畸、致残而不知其原因。我院十余年来遇３例，虽经正确的治疗而最终痊愈，但均经过１～２年的误诊，造成了程度不同的畸形。现就误诊原因进行分析。１　临床资料１．１　一? Primary hyperparathyroidism (PHPT) is a clinically rare endocrine disease, because of its special pathophysiological changes, often make people teratogenic, disabling and I do not know the reason. In our hospital more than 10 years in 3 cases, although the correct treatment and eventually recovered, but after 1 to 2 years of misdiagnosis, resulting in a different degree of deformity. Now misdiagnosis of the reasons for analysis. 1 clinical data 1.1 a?